Technical Reference
49
2.8 Connectors
CAUTION
Only the back panel connectors of the D850GB board have overcurrent protection. The D850GB
board’s internal connectors are not overcurrent protected and should connect only to devices
inside the computer’s chassis, such as fans and internal peripherals. Do not use these connectors
to power devices external to the computer’s chassis. A fault in the load presented by the external
devices could cause damage to the computer, the interconnecting cable, and the external devices
themselves.
This section describes the board’s connectors. The connectors can be divided into the following
groups:
• Back panel I/O connectors (see page 50)
PS/2 keyboard and mouse
USB (2)
Parallel port
Serial port
LAN
Audio (Line out, Line in, and Mic in)
• Internal I/O connectors (see page 53)
Audio (ATAPI CD-ROM, legacy-style CD-ROM, and auxiliary line input)
Fans (4)
Power (3)
Wake on LAN technology
Wake on Ring
Add-in boards (one CNR connector, one AGP connector, and five PCI bus connectors)
IDE (2)
Diskette drive
SCSI LED
• External I/O connectors (see page 65)
Front panel USB
Front panel (power/sleep/message-waiting LED, power switch, hard drive activity LED,
reset switch, infrared port, and auxiliary front panel power LED)
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